Cam phaser

Abstract

A cam phaser including a rotation phaser and a hydraulic valve hydraulically loading the rotation phaser, wherein the hydraulic valve is connectable torque proof with a cam shaft so that the cam shaft is rotatable, wherein the rotation phaser includes a stator and a rotor configured coaxial with the stator, wherein the rotor is rotatable relative to the stator, wherein the hydraulic valve is configured so that it protrudes at least partially into the rotation phaser, wherein an adapter is provided for a relative axial positioning of the rotor and the stator. According to the invention the adapter is configured for loose mounting in the rotation phaser so that a fixated connection of the adapter in the rotation phaser is provided when the cam shaft is mounted at the hydraulic valve.

What is claimed is: 
     
       1. A cam phaser, comprising:
 a rotation phaser; and 
 a hydraulic valve hydraulically loading the rotation phaser, 
 wherein the hydraulic valve is connected torque proof with a cam shaft such that the cam shaft is configured to rotate relative to the rotation phaser, 
 wherein the rotation phaser includes a stator and a rotor arranged coaxially within the stator, 
 wherein the rotor is configured to rotate relative to the stator, 
 wherein the hydraulic valve protrudes at least partially into the rotation phaser, 
 wherein an adapter provides relative axial positioning of the rotor and the stator, 
 wherein the adapter is loosely mounted in the rotation phaser such that a fixed connection of the adapter in the rotation phaser is provided when the cam shaft is connected with the hydraulic valve, 
 wherein a drive wheel of the stator is arranged radially on an annular shoulder of the adapter, and 
 wherein a radial clearance is provided between the annular shoulder and the drive wheel. 
 
     
     
       2. The cam phaser according to  claim 1 , wherein a radial clearance is provided between the adapter and the rotor. 
     
     
       3. The cam phaser according to  claim 1 , wherein the hydraulic valve is configured as an externally threaded central valve. 
     
     
       4. The adapter according to  claim 1 , wherein the adapter is arranged between the cam shaft and the rotor. 
     
     
       5. The cam phaser according to  claim 1 ,
 wherein a radial straight bearing is provided between the rotation phaser and the adapter, and 
 wherein a radial clearance is provided between the radial straight bearing and the adapter. 
 
     
     
       6. The cam phaser according to  claim 1 , wherein the annular shoulder is arranged on the adapter at an end oriented towards the rotor. 
     
     
       7. The cam phaser according to  claim 1 , wherein the adapter includes at least one recess completely penetrating the adapter in a radial direction over a circumference of the adapter. 
     
     
       8. The cam phaser according to  claim 7 , wherein the recess is configured as a groove. 
     
     
       9. A cam phaser, comprising:
 a rotation phaser; and 
 a hydraulic valve hydraulically loading the rotation phaser, 
 wherein the hydraulic valve is connected torque proof with a cam shaft such that the cam shaft is configured to rotate relative to the rotation phaser, 
 wherein the rotation phaser includes a stator and a rotor arranged coaxially within the stator, 
 wherein the rotor is configured to rotate relative to the stator, 
 wherein the hydraulic valve protrudes at least partially into the rotation phaser, 
 wherein an adapter provides relative axial positioning of the rotor and the stator, 
 wherein the adapter is loosely mounted in the rotation phaser such that a fixed connection of the adapter in the rotation phaser is provided when the cam shaft is connected with the hydraulic valve, 
 wherein the rotor is arranged radially on an annular shoulder of the adapter, and 
 wherein a radial clearance is provided between the annular shoulder and a drive wheel of the stator. 
 
     
     
       10. The cam phaser according to  claim 9 , wherein a radial clearance is provided between the adapter and the rotor. 
     
     
       11. The cam phaser according to  claim 9 , wherein the hydraulic valve is configured as an externally threaded central valve. 
     
     
       12. The adapter according to  claim 9 , wherein the adapter is arranged between the cam shaft and the rotor. 
     
     
       13. The cam phaser according to  claim 9 ,
 wherein a radial straight bearing is provided between the rotation phaser and the adapter, and 
 wherein a radial clearance is provided between the radial straight bearing and the adapter. 
 
     
     
       14. The cam phaser according to  claim 9 , wherein the annular shoulder is arranged on the adapter at an end oriented towards the rotor. 
     
     
       15. The cam phaser according to  claim 9 , wherein the adapter includes at least one recess completely penetrating the adapter in a radial direction over a circumference of the adapter. 
     
     
       16. The cam phaser according to  claim 15 , wherein the recess is configured as a groove.